Maternal undernutrition inhibits fetal rumen development: Novel miRNA-736-mediated dual targeting of E2F2 and MYBL2 in sheep
Abstract
Background
Undernutrition
disrupts
pregnant
ewe’s
metabolic
homeostasis
and
severely
inhibits
fetal
growth
development.
In
this
study,
undernourished
nutrition-recovery
sheep
models
rumen
epithelial
cells
were
utilized
to
investigate
the
mechanisms
behind
undernutrition-induced
disruptions
in
metabolism
Results
Maternal
undernutrition
significantly
reduced
weight
papilla
length,
width
surface
area.
extremely
suppressed
nutrient
energy
production
via
JAK3 /STAT3
signaling
inhibit
cell
cycle
progression
development,
while
maternal
nutritional
recovery
partially
restored
inhibition
but
failed
alleviate
Meanwhile,
64
differentially
expressed
miRNAs
(DEMs)
identified
between
ewes
controls.
Novel
miR-736
was
overexpressed
both
of
models.
E2F
transcription
factor
2
(E2F2 )
MYB
proto-oncogene
like
(MYBL2 )
intersection
genes
(DEGs)
DEMs
target
integrated
analysis
predicted
as
genes.
Further,
we
confirmed
that
targeted
downregulated
E2F2
MYBL2
expressional
levels.
Silencing
promoted
apoptosis
inhibited
S-phase
entry
cells.
Conclusions
summary,
disrupted
elevated
miR-736,
which
promote
apoptosis,
finally
This
study
provides
new
insights
into
epigenetic
underlying
developmental
deficits.
Published: May 13, 2025
Language: Английский